Chia-Network / chia-blockchain / 39453835512

91%

Build Type

push

github

Committed by web-flow

Commit Message

[CHIA-4454] Keep introducer and seeder peers when a DNS lookup fails (#21515)

* Keep introducer and seeder peers when a DNS lookup fails

The introducer's DNS fallback and the seeder's static peer resolution let a
single failed lookup (NXDOMAIN, SERVFAIL, timeout, or no AAAA records) escape:

- The introducer dropped its vetted peers, closed the connection and banned
  the requester, so it returned no peers at all.
- The seeder dropped every static peer and the crawler's good peers, and the
  periodic refresh task died silently, so the seeder served no peers until it
  restarted.

Catch and log each failed lookup instead and keep the remaining results, and
keep the seeder's refresh loop running after an error.

* Restore the shared seeder fixture after the unresolvable static peers test

Use monkeypatch for the resolver and static_peers overrides so they don't leak into later tests that share the module-scoped seeder_service fixture.

Coverage Stats

20034 of 25024 branches covered (80.06%)

Branch coverage included in aggregate %.

86 of 87 new or added lines in 4 files covered. (98.85%)

96 existing lines in 10 files now uncovered.

118114 of 127992 relevant lines covered (92.28%)

1.85 hits per line